Valve



F. A. LOGAN.

VALVE.

APPLICATION FILED AUG. 10. 1921.

1 135 8990 Patented Nov. M, 1922.

Patented Nov. 14, 1922.

UNHTFJD TATES FRANK A. LOGAN, 0F JEIDGEWOW, MARYLAND.

VALVE.

Application filed August 10, 1921. Serial No. 491,140.

(FILED UNDER THE ACT 0E MARCH 3, 1883, 22 STAT. L, 625.)

To all whom it may concern:

Be it known that I, FRANK A. LOGAN, a citizen of the United States of America, and resident of Edgewood, Maryland, have invented certain new and useful Improvements in Valves, of which the following is a specification.

This application is made under the act of March 3, 1883, chapter 1A3 (22 Stat, 625) and the invention herein described and claimed may be used by the Government of the United States or any of its oflicers, or employees in the prosecution of work for the Government, and any person in the United States without the payment to me of any royalty thereon.

This invention relates to valves and has special reference to valves made from flexible or elastic material such-as rubber, which are disposed so that air or gas may pass thru one direction only.

Among the objects of this invention is the provision of a valve of simple construction and operation, high reliability and low cost of manufacture.

A further object of this invention is the provision of a valve of flexible or elastic material of a configuration which permits the valve to be securely attached to the top or walls of a container or canister without the use of an adhesive or other auxiliary securing means.

teference is to be had to the accompanying drawing wherein Fig. 1 is a vertical section thru the valve; Fig. 2 is a perspective view of the valve; Fig. 3 is a vertical section of the valve when in use.

The valve is preferably made of rubber and comprises a vertical upright portion (1) having a flange (2), and terminating at its upper portion in the bead or projection (3). The portions (1), (2) and (3) are made integral with each other. Attached to the flange (2) is the base (4) of the valve, which is disposed so as to vibrate to and from the flanged portion The base (4:) is not attached to the entire surface of the flange (2) but only at certain convenient portions, and if the pressure of air or gas on the surface (5) of the base is greater than that on the surface (6), the valve will open and permit the air or gas to pass between the base (4) and flange (2) at the unattached portions. However, if the pressure on the surface (6) is greater than that on the surface (5), the valve will close and no air or gas will pass thru the valve.

An important feature of this valve is the bead (3) at the upper portion thereof. Referring to Fig. 3, wherein the valve is shown' positioned in the top (7 of a container, it will be seen that the upper portion of the valve is rolled over the beaded portion (8) of the neck (9) of the valve-holding portion of the canister. When the valve is rolled over the bead'(8), the bead (3) grips the neck (9) very tightly and the valve (1) is held in substantially as secure a position as if some auxiliary securing means had been used to keep it in place. This advantage of enabling the valve to be attached in secured position upon the top or wall of the container, without the aid of an adhesive or other means, is an important feature of this invention. V

The present invention is not limited to the specific details set forth in the foregoing examples which should be construed as illustrative and not by way of limitation, and

in view of the numerous modifications which may be effected therein without departing from the spirit and scope of this invention, it is desired that only such limitations be imposed as are indicated in the appended claims.

I claim as my invention:

1. A- valve of elastic material having a base attached at spaced points thereto, and

terminating in a beaded portion at the top.

2. A valve of elastic material having a neck portion of thin material, a flange at one end of the neck connected at spaced points to a base of flexible material and a beaded portion at the other end of said neck.

3. A valve of elastic material having a thin neck terminating at one end in a bead and at the other in a flange, said bead and flange being integral with said neck, and a base of flexible material connected to said flange at spaced points and disposed to vibrate to and from said flange.

4:. A valve of elastic material having a thin, cylindrical neck, terminating at one end in a bead and at the other in a flange, said head and flange being integral with said neck, and a base of flexible material connected to said flange at spaced points and disposed to vibrate to and from said flange.

FRANK A. LOGAN. 

